A reevaluation of the NML absolute ohm and quantized Hall resistance determinations

Several electrical and geometrical aspects of the National Measurement Laboratory (NML) calculable capacitor are reexamined for effects of wear and other possible causes of error. A new set of quantized Hall resistance measurements is made and related to the NML realization of the SI ohm based on the calculable capacitor. The results of these measurements may be expressed as R/sub H/=25812.8 (1.000,000,363 (66)) Omega .<
>